222142147 has 2 divisors, whose sum is σ = 222142148. Its totient is φ = 222142146.

The previous prime is 222142121. The next prime is 222142153. The reversal of 222142147 is 741241222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222142147 - 2¹⁹ = 221617859 is a prime.

It is not a weakly prime, because it can be changed into another prime (222142157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111071073 + 111071074.

It is an arithmetic number, because the mean of its divisors is an integer number (111071074).

Almost surely, 2^222142147 is an apocalyptic number.

222142147 is a deficient number, since it is larger than the sum of its proper divisors (1).

222142147 is an equidigital number, since it uses as much as digits as its factorization.

222142147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1792, while the sum is 25.

The square root of 222142147 is about 14904.4338034023. The cubic root of 222142147 is about 605.6341023694.

Adding to 222142147 its reverse (741241222), we get a palindrome (963383369).

The spelling of 222142147 in words is "two hundred twenty-two million, one hundred forty-two thousand, one hundred forty-seven".